Adding set emmissivity example.

Jim Lindblom · Jim Lindblom · commit 8c65cf4079af · 2015-10-29T09:41:40.000-06:00
diff --git a/src/SparkFunMLX90614.cpp b/src/SparkFunMLX90614.cpp
@@ -185,6 +185,8 @@ uint8_t IRTherm::setEmissivity(float emis)
 		return 0; // Return fail if not
 	// Calculate the raw 16-bit value:
 	uint16_t ke = uint16_t(65535.0 * emis);
+	ke = constrain(ke, 0x2000, 0xFFFF);
+
 	// Write that value to the ke register
 	return writeEEPROM(MLX90614_REGISTER_KE, (int16_t)ke);
 }

Original file line number	Diff line number	Diff line change
`@@ -185,6 +185,8 @@ uint8_t IRTherm::setEmissivity(float emis)`
`185`	`185`	`return 0; // Return fail if not`
`186`	`186`	`// Calculate the raw 16-bit value:`
`187`	`187`	`uint16_t ke = uint16_t(65535.0 * emis);`
	`188`	`+ ke = constrain(ke, 0x2000, 0xFFFF);`
	`189`	`+`
`188`	`190`	`// Write that value to the ke register`
`189`	`191`	`return writeEEPROM(MLX90614_REGISTER_KE, (int16_t)ke);`
`190`	`192`	`}`